basic graphics stack

everything is defined in graphics.js it is curently very basic et poorly performing but png/jpg files can be displayed

createLiveImage.sh

@@ -5,6 +5,11 @@ then echo "Please run as root"
     exit
 fi
 
+if [ ! -d rootfs\ overrides/chibrax/node_modules ]
+then
+    echo "please run npmi.sh"
+    exit 1
+fi
 
 CHIBRAX_MOUNT_POINT="/tmp/chibraxMountPoint"
 

kernel/.config

@@ -871,6 +871,7 @@ CONFIG_ARCH_HAS_PKEYS=y
 # CONFIG_PERCPU_STATS is not set
 # CONFIG_GUP_TEST is not set
 CONFIG_ARCH_HAS_PTE_SPECIAL=y
+CONFIG_MAPPING_DIRTY_HELPERS=y
 CONFIG_SECRETMEM=y
 
 #
@@ -2443,7 +2444,7 @@ CONFIG_CONSOLE_TRANSLATIONS=y
 CONFIG_VT_CONSOLE=y
 CONFIG_VT_CONSOLE_SLEEP=y
 CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_LDISC_AUTOLOAD=y
@@ -3046,19 +3047,22 @@ CONFIG_AGP_INTEL=y
 CONFIG_INTEL_GTT=y
 CONFIG_VGA_ARB=y
 CONFIG_VGA_ARB_MAX_GPUS=16
-# CONFIG_VGA_SWITCHEROO is not set
+CONFIG_VGA_SWITCHEROO=y
 CONFIG_DRM=y
 CONFIG_DRM_MIPI_DSI=y
 # CONFIG_DRM_DP_AUX_CHARDEV is not set
 # CONFIG_DRM_DEBUG_MM is not set
 # CONFIG_DRM_DEBUG_SELFTEST is not set
 CONFIG_DRM_KMS_HELPER=y
+CONFIG_DRM_FBDEV_EMULATION=y
+CONFIG_DRM_FBDEV_OVERALLOC=300
 # CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
 # CONFIG_DRM_DP_CEC is not set
 CONFIG_DRM_TTM=y
-CONFIG_DRM_VRAM_HELPER=m
+CONFIG_DRM_VRAM_HELPER=y
-CONFIG_DRM_TTM_HELPER=m
+CONFIG_DRM_TTM_HELPER=y
 CONFIG_DRM_GEM_SHMEM_HELPER=y
+CONFIG_DRM_SCHED=y
 
 #
 # I2C encoder or helper chips
@@ -3074,9 +3078,36 @@ CONFIG_DRM_GEM_SHMEM_HELPER=y
 #
 # end of ARM devices
 
-# CONFIG_DRM_RADEON is not set
+CONFIG_DRM_RADEON=y
-# CONFIG_DRM_AMDGPU is not set
+# CONFIG_DRM_RADEON_USERPTR is not set
-# CONFIG_DRM_NOUVEAU is not set
+CONFIG_DRM_AMDGPU=y
+# CONFIG_DRM_AMDGPU_SI is not set
+# CONFIG_DRM_AMDGPU_CIK is not set
+# CONFIG_DRM_AMDGPU_USERPTR is not set
+
+#
+# ACP (Audio CoProcessor) Configuration
+#
+# CONFIG_DRM_AMD_ACP is not set
+# end of ACP (Audio CoProcessor) Configuration
+
+#
+# Display Engine Configuration
+#
+CONFIG_DRM_AMD_DC=y
+CONFIG_DRM_AMD_DC_DCN=y
+# CONFIG_DRM_AMD_DC_HDCP is not set
+# CONFIG_DRM_AMD_SECURE_DISPLAY is not set
+# end of Display Engine Configuration
+
+# CONFIG_HSA_AMD is not set
+CONFIG_DRM_NOUVEAU=y
+CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT=y
+CONFIG_NOUVEAU_DEBUG=5
+CONFIG_NOUVEAU_DEBUG_DEFAULT=3
+# CONFIG_NOUVEAU_DEBUG_MMU is not set
+# CONFIG_NOUVEAU_DEBUG_PUSH is not set
+CONFIG_DRM_NOUVEAU_BACKLIGHT=y
 CONFIG_DRM_I915=y
 CONFIG_DRM_I915_FORCE_PROBE=""
 CONFIG_DRM_I915_CAPTURE_ERROR=y
@@ -3093,13 +3124,15 @@ CONFIG_DRM_I915_STOP_TIMEOUT=100
 CONFIG_DRM_I915_TIMESLICE_DURATION=1
 # CONFIG_DRM_VGEM is not set
 # CONFIG_DRM_VKMS is not set
-# CONFIG_DRM_VMWGFX is not set
+CONFIG_DRM_VMWGFX=y
+# CONFIG_DRM_VMWGFX_FBCON is not set
+# CONFIG_DRM_VMWGFX_MKSSTATS is not set
 # CONFIG_DRM_GMA500 is not set
 # CONFIG_DRM_UDL is not set
 # CONFIG_DRM_AST is not set
 # CONFIG_DRM_MGAG200 is not set
-CONFIG_DRM_QXL=m
+CONFIG_DRM_QXL=y
-CONFIG_DRM_VIRTIO_GPU=m
+CONFIG_DRM_VIRTIO_GPU=y
 CONFIG_DRM_PANEL=y
 
 #
@@ -3121,20 +3154,96 @@ CONFIG_DRM_PANEL_BRIDGE=y
 # CONFIG_DRM_BOCHS is not set
 # CONFIG_DRM_CIRRUS_QEMU is not set
 # CONFIG_DRM_GM12U320 is not set
-CONFIG_DRM_SIMPLEDRM=m
+CONFIG_DRM_SIMPLEDRM=y
 CONFIG_DRM_XEN=y
-CONFIG_DRM_XEN_FRONTEND=m
+CONFIG_DRM_XEN_FRONTEND=y
-CONFIG_DRM_VBOXVIDEO=m
+CONFIG_DRM_VBOXVIDEO=y
 # CONFIG_DRM_GUD is not set
 # CONFIG_DRM_HYPERV is not set
-# CONFIG_DRM_LEGACY is not set
+CONFIG_DRM_LEGACY=y
+# CONFIG_DRM_TDFX is not set
+# CONFIG_DRM_R128 is not set
+# CONFIG_DRM_I810 is not set
+# CONFIG_DRM_MGA is not set
+# CONFIG_DRM_SIS is not set
+# CONFIG_DRM_VIA is not set
+# CONFIG_DRM_SAVAGE is not set
 CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
 
 #
 # Frame buffer Devices
 #
 CONFIG_FB_CMDLINE=y
-# CONFIG_FB is not set
+CONFIG_FB_NOTIFY=y
+CONFIG_FB=y
+CONFIG_FIRMWARE_EDID=y
+CONFIG_FB_DDC=y
+CONFIG_FB_BOOT_VESA_SUPPORT=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_SYS_FILLRECT=y
+CONFIG_FB_SYS_COPYAREA=y
+CONFIG_FB_SYS_IMAGEBLIT=y
+CONFIG_FB_FOREIGN_ENDIAN=y
+CONFIG_FB_BOTH_ENDIAN=y
+# CONFIG_FB_BIG_ENDIAN is not set
+# CONFIG_FB_LITTLE_ENDIAN is not set
+CONFIG_FB_SYS_FOPS=y
+CONFIG_FB_DEFERRED_IO=y
+CONFIG_FB_BACKLIGHT=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_CIRRUS is not set
+# CONFIG_FB_PM2 is not set
+# CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_ARC is not set
+# CONFIG_FB_ASILIANT is not set
+# CONFIG_FB_IMSTT is not set
+CONFIG_FB_VGA16=y
+CONFIG_FB_UVESA=y
+CONFIG_FB_VESA=y
+# CONFIG_FB_EFI is not set
+# CONFIG_FB_N411 is not set
+# CONFIG_FB_HGA is not set
+# CONFIG_FB_OPENCORES is not set
+# CONFIG_FB_S1D13XXX is not set
+CONFIG_FB_NVIDIA=y
+CONFIG_FB_NVIDIA_I2C=y
+# CONFIG_FB_NVIDIA_DEBUG is not set
+CONFIG_FB_NVIDIA_BACKLIGHT=y
+# CONFIG_FB_RIVA is not set
+# CONFIG_FB_I740 is not set
+# CONFIG_FB_LE80578 is not set
+# CONFIG_FB_MATROX is not set
+# CONFIG_FB_RADEON is not set
+# CONFIG_FB_ATY128 is not set
+# CONFIG_FB_ATY is not set
+# CONFIG_FB_S3 is not set
+# CONFIG_FB_SAVAGE is not set
+# CONFIG_FB_SIS is not set
+# CONFIG_FB_NEOMAGIC is not set
+# CONFIG_FB_KYRO is not set
+# CONFIG_FB_3DFX is not set
+# CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_VT8623 is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_ARK is not set
+# CONFIG_FB_PM3 is not set
+# CONFIG_FB_CARMINE is not set
+# CONFIG_FB_SMSCUFX is not set
+# CONFIG_FB_UDL is not set
+# CONFIG_FB_IBM_GXT4500 is not set
+# CONFIG_FB_VIRTUAL is not set
+CONFIG_XEN_FBDEV_FRONTEND=y
+# CONFIG_FB_METRONOME is not set
+# CONFIG_FB_MB862XX is not set
+CONFIG_FB_HYPERV=m
+# CONFIG_FB_SM712 is not set
 # end of Frame buffer Devices
 
 #
@@ -3153,6 +3262,7 @@ CONFIG_BACKLIGHT_CLASS_DEVICE=y
 # CONFIG_BACKLIGHT_ARCXCNN is not set
 # end of Backlight & LCD device support
 
+CONFIG_VGASTATE=y
 CONFIG_VIDEOMODE_HELPERS=y
 CONFIG_HDMI=y
 
@@ -3163,7 +3273,16 @@ CONFIG_VGA_CONSOLE=y
 CONFIG_DUMMY_CONSOLE=y
 CONFIG_DUMMY_CONSOLE_COLUMNS=80
 CONFIG_DUMMY_CONSOLE_ROWS=25
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
 # end of Console display driver support
+
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_MONO=y
+CONFIG_LOGO_LINUX_VGA16=y
+CONFIG_LOGO_LINUX_CLUT224=y
 # end of Graphics support
 
 CONFIG_SOUND=y
@@ -4019,7 +4138,7 @@ CONFIG_SYNC_FILE=y
 CONFIG_VIRT_DRIVERS=y
 CONFIG_VBOXGUEST=m
 # CONFIG_NITRO_ENCLAVES is not set
-CONFIG_VIRTIO=m
+CONFIG_VIRTIO=y
 CONFIG_VIRTIO_PCI_LIB=m
 CONFIG_VIRTIO_MENU=y
 CONFIG_VIRTIO_PCI=m
@@ -4028,7 +4147,7 @@ CONFIG_VIRTIO_BALLOON=m
 CONFIG_VIRTIO_INPUT=m
 CONFIG_VIRTIO_MMIO=m
 CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
-CONFIG_VIRTIO_DMA_SHARED_BUFFER=m
+CONFIG_VIRTIO_DMA_SHARED_BUFFER=y
 # CONFIG_VDPA is not set
 CONFIG_VHOST_MENU=y
 # CONFIG_VHOST_NET is not set
@@ -4070,21 +4189,29 @@ CONFIG_XEN_AUTO_XLATE=y
 CONFIG_XEN_ACPI=y
 CONFIG_XEN_SYMS=y
 CONFIG_XEN_HAVE_VPMU=y
-CONFIG_XEN_FRONT_PGDIR_SHBUF=m
+CONFIG_XEN_FRONT_PGDIR_SHBUF=y
 # end of Xen driver support
 
 # CONFIG_GREYBUS is not set
 # CONFIG_COMEDI is not set
 # CONFIG_STAGING is not set
 CONFIG_X86_PLATFORM_DEVICES=y
-# CONFIG_ACPI_WMI is not set
+CONFIG_ACPI_WMI=y
+CONFIG_WMI_BMOF=m
+# CONFIG_HUAWEI_WMI is not set
+CONFIG_MXM_WMI=y
+# CONFIG_PEAQ_WMI is not set
+# CONFIG_XIAOMI_WMI is not set
+# CONFIG_GIGABYTE_WMI is not set
 # CONFIG_ACERHDF is not set
 # CONFIG_ACER_WIRELESS is not set
+# CONFIG_ACER_WMI is not set
 # CONFIG_AMD_PMC is not set
 # CONFIG_ADV_SWBUTTON is not set
 # CONFIG_APPLE_GMUX is not set
 # CONFIG_ASUS_LAPTOP is not set
 # CONFIG_ASUS_WIRELESS is not set
+# CONFIG_ASUS_WMI is not set
 CONFIG_EEEPC_LAPTOP=y
 # CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
 # CONFIG_AMILO_RFKILL is not set
@@ -4093,10 +4220,12 @@ CONFIG_EEEPC_LAPTOP=y
 # CONFIG_GPD_POCKET_FAN is not set
 # CONFIG_HP_ACCEL is not set
 # CONFIG_WIRELESS_HOTKEY is not set
+# CONFIG_HP_WMI is not set
 # CONFIG_IBM_RTL is not set
 # CONFIG_IDEAPAD_LAPTOP is not set
 # CONFIG_SENSORS_HDAPS is not set
 # CONFIG_THINKPAD_ACPI is not set
+# CONFIG_THINKPAD_LMI is not set
 CONFIG_X86_PLATFORM_DRIVERS_INTEL=y
 # CONFIG_INTEL_ATOMISP2_PM is not set
 # CONFIG_INTEL_SAR_INT1092 is not set
@@ -4108,6 +4237,8 @@ CONFIG_X86_PLATFORM_DRIVERS_INTEL=y
 # CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
 # end of Intel Speed Select Technology interface support
 
+# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
+# CONFIG_INTEL_WMI_THUNDERBOLT is not set
 # CONFIG_INTEL_HID_EVENT is not set
 # CONFIG_INTEL_VBTN is not set
 # CONFIG_INTEL_OAKTRAIL is not set
@@ -4117,12 +4248,15 @@ CONFIG_X86_PLATFORM_DRIVERS_INTEL=y
 # CONFIG_INTEL_TURBO_MAX_3 is not set
 # CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
 # CONFIG_MSI_LAPTOP is not set
+# CONFIG_MSI_WMI is not set
 # CONFIG_SAMSUNG_LAPTOP is not set
 # CONFIG_SAMSUNG_Q10 is not set
 # CONFIG_TOSHIBA_BT_RFKILL is not set
 # CONFIG_TOSHIBA_HAPS is not set
+# CONFIG_TOSHIBA_WMI is not set
 # CONFIG_ACPI_CMPC is not set
 # CONFIG_COMPAL_LAPTOP is not set
+# CONFIG_LG_LAPTOP is not set
 # CONFIG_PANASONIC_LAPTOP is not set
 # CONFIG_SONY_LAPTOP is not set
 # CONFIG_SYSTEM76_ACPI is not set
@@ -4892,8 +5026,9 @@ CONFIG_HAVE_GENERIC_VDSO=y
 CONFIG_GENERIC_GETTIMEOFDAY=y
 CONFIG_GENERIC_VDSO_TIME_NS=y
 CONFIG_FONT_SUPPORT=y
+# CONFIG_FONTS is not set
+CONFIG_FONT_8x8=y
 CONFIG_FONT_8x16=y
-CONFIG_FONT_AUTOSELECT=y
 CONFIG_SG_POOL=y
 CONFIG_ARCH_HAS_PMEM_API=y
 CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y

npmi.sh

@@ -0,0 +1,7 @@
+if [ "$EUID" = 0 ]
+then echo "Please don't run as root"
+    exit
+fi
+
+npm i
+cd rootfs\ overrides/chibrax && npm i && cd -

rootfs overrides/chibrax/.gitignore

@@ -1,4 +1,6 @@
 syscall.node
 ioctl.node
 mount.node
-file.node
+file.node
+node_modules
+package-lock.json

rootfs overrides/chibrax/graphics.js

@@ -0,0 +1,150 @@
+//@ts-check
+const fs = require('fs')
+const jimp = require('jimp')
+
+const screen = getScreenDimensions()
+const buffer = Buffer.alloc(screen.width * screen.height * screen.byteDepth)
+//TODO: implement automatic cache cleanup
+/**
+ * @type {{ [key: string]: import('@jimp/core').Bitmap }}
+ */
+const imageCache = {}
+
+function getScreenDimensions() {
+    const vsize = fs.readFileSync('/sys/class/graphics/fb0/virtual_size', { encoding: 'utf-8' }).split(',')
+    const byteDepth = parseInt(fs.readFileSync('/sys/class/graphics/fb0/bits_per_pixel').toString()) / 8
+
+    return {
+        width: parseInt(vsize[0]),
+        height: parseInt(vsize[1]),
+        byteDepth
+    }
+}
+
+/**
+ * @param { Buffer } data
+ */
+function flip(data = buffer) {
+    try {
+        fs.writeFileSync('/dev/fb0', data, { encoding: 'binary' })
+    } catch(e) {
+        console.log("could not write to /dev/fb0")
+        console.log(e)
+    }
+}
+
+function clear() {
+    buffer.fill(0)
+}
+
+/**
+ * @param {string} filepath
+ */
+function removeFromCache(filepath) {
+    delete imageCache[filepath]
+}
+
+/**
+ * @param { number } x
+ * @param { number } y
+ * @param { string } filepath
+ * //!\\ THE CACHE DOESN'T CLEAN ITSELF UP //!\\
+ * once you finished displaying a image use removeFromCache to free the associated memory
+ */
+async function drawImgFile(x, y, filepath) {
+    let bitmap
+    //not caching would imply reading the image each time we want to write it to the screen even for small movement
+    if(!imageCache[filepath]) {
+        const img = await jimp.read(filepath)
+        bitmap = img.bitmap
+        bitmap.data = rgbaTObgra(bitmap.data)
+        imageCache[filepath] = bitmap
+    } else {
+        bitmap = imageCache[filepath]
+    }
+
+
+
+    for(let dy = 0; dy < bitmap.height; dy++) {
+        let bitmapLineEnd = bitmap.width * screen.byteDepth * (dy + 1)
+        let bitmapLineStart = bitmap.width * screen.byteDepth * dy
+        let dx = x
+
+        const offscreenRight = dx + bitmap.width - screen.width
+        if(offscreenRight > 0) {
+            bitmapLineEnd -= offscreenRight*4
+        }
+
+        const offscreenLeft = -dx
+        if(offscreenLeft > 0) {
+            bitmapLineStart += offscreenLeft*4
+            dx = 0
+        }
+
+        const offscreenTop = -y
+        if(offscreenTop >= dy) {
+            dy = offscreenTop
+            continue
+        }
+
+        const offscreenBottom = bitmap.height + y - screen.height
+        if(offscreenBottom > 0 && bitmap.height - offscreenBottom <= dy) {
+            break
+        }
+
+        if(bitmapLineEnd < bitmapLineStart) {
+            continue
+        }
+
+
+        const line = bitmap.data.subarray(bitmapLineStart, bitmapLineEnd)
+        buffer.set(Array.from(line), dx * screen.byteDepth + screen.width * (dy + y) * screen.byteDepth)
+    }
+}
+
+/**
+ *  @param { Buffer } buff
+ */
+function rgbaTObgra(buff) {
+    for(let i=0; i < buff.length; i += 4) {
+        const r = buff.readUInt8(i)
+        const b = buff.readUInt8(i+2)
+
+        buff.set([b], i)
+        buff.set([r], i+2)
+    }
+    return buff
+}
+
+/**
+ * @param { string } color
+ * @returns { number[] }
+ */
+function parseHexColor(color) {
+    if(!color.startsWith('#') || color.length !== 7) {
+        throw new Error('invalid hex color code')
+    }
+    const r = parseInt(color.substring(1,2), 16)
+    const v = parseInt(color.substring(3,4), 16)
+    const b = parseInt(color.substring(5,6), 16)
+    return [b, v, r, 0]
+}
+
+/**
+ *
+ * @param { number } x
+ * @param { number } y
+ * @param { string | number[] } colorCode
+ */
+function setPixel(x, y, colorCode) {
+    if (screen.byteDepth !== 4) {
+        throw new Error('Depth not supported yet')
+    }
+
+    if(typeof colorCode === 'string') {
+        colorCode = parseHexColor(colorCode)
+    }
+    buffer.set(colorCode, (x + y * screen.width) * screen.byteDepth)
+}
+
+module.exports = { flip, clear, getScreenDimensions, drawImgFile, parseHexColor, setPixel }

rootfs overrides/chibrax/package.json

@@ -1,5 +1,8 @@
 {
   "devDependencies": {
-    "@types/node": "^16.11.10"
+    "@types/node": "^16.11.21"
+  },
+  "dependencies": {
+    "jimp": "^0.16.1"
   }
 }

rootfs overrides/usr/bin/framebuffer-demo.js

@@ -0,0 +1,135 @@
+//@ts-check
+const graphics = require('../../chibrax/graphics')
+
+graphics.clear()
+drawChibrax()
+
+graphics.flip()
+
+function drawChibrax() {
+    //LA LETTRE C
+    for(let i = 0; i < 100; i++) {
+        for(let j = 0; j < 10; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 0; i < 20; i++) {
+        for(let j = 10; j < 110; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+    for(let i = 0; i < 100; i++) {
+        for(let j = 110; j < 120; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+
+    //LA LETTRE H
+    for(let i = 110; i < 130; i++) {
+        for(let j = 0; j < 100; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 110; i < 210; i++) {
+        for(let j = 50; j < 60; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+    for(let i = 210; i < 230; i++) {
+        for(let j = 0; j < 100; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    //LA LETTRE I
+    for(let i = 240; i < 260; i++) {
+        for(let j = 0; j < 100; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    //LA LETTRE B
+    for(let i = 270; i < 280; i++) {
+        for(let j = 0; j < 100; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 380; i < 390; i++) {
+        for(let j = 0; j < 100; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 270; i < 390; i++) {
+        for(let j = 0; j < 10; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 270; i < 390; i++) {
+        for(let j = 50; j < 60; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 270; i < 390; i++) {
+        for(let j = 90; j < 100; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    //LA LETTRE R
+    for(let i = 400; i < 410; i++) {
+        for(let j = 0; j < 100; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 510; i < 520; i++) {
+        for(let j = 0; j < 100; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 400; i < 520; i++) {
+        for(let j = 0; j < 10; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 400; i < 520; i++) {
+        for(let j = 50; j < 60; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    //LA LETTRE E
+    for(let i = 530; i < 630; i++) {
+        for(let j = 0; j < 10; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 530; i < 550; i++) {
+        for(let j = 10; j < 110; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 530; i < 630; i++) {
+        for(let j = 50; j < 60; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+    for(let i = 530; i < 630; i++) {
+        for(let j = 110; j < 120; j++) {
+            graphics.setPixel(i,j, [0,0,255,0])
+        }
+    }
+
+}